April 21, 2017
Varghese Kurian, Juntao Chen and Quanyan Zhu
Peak time water demands cause significant burden to the utility providers in terms of pumping loads. Its coincidence with the peak hours of electricity consumption makes the situation worse. In this paper, we bring forth the requirement as well as the viability of implementing time-varying tariffs in the ‘smart water systems’.We present the problem of finding the optimal tariffs as a Stackelberg game between the utility provider and the consumers of water. Further, we propose an algorithm that iterates between the suppliers problem and the consumers problem for finding the optimal tariffs along with a demonstration of its applicability on a small system.
April 19, 2017
Muhammad Junaid Farooq , Hesham ElSawy , Quanyan Zhu and Mohamed-Slim Alouini.
Mission critical data dissemination in massive Internet of things (IoT) networks imposes constraints on the message transfer delay between devices. Due to low power and communication range of IoT devices, data is foreseen to be relayed over multiple device-to-device (D2D) links before reaching the destination.The coexistence of a massive number of IoT devices poses a challenge in maximizing the successful transmission capacity of the overall network alongside reducing the multihop transmission delay in order to support mission critical applications.
April 12, 2017
Stefan Rass , Ali Alshawish , Mohamed Amine Abid , Stefan Schauer , Quanyan Zhu and Hermann de Meer.
The protection of cyber-physical networks is a topic of increasing importance. The evolution of IT (cyber) systems that control and supervise the underlying physical system has grown over decades, whereas security has not become a concern until quite recently. Advanced persistent threats (APTs) have proven to be a difficult but significant challenge for practitioners. This work adopts a game-theoretic modeling of APTs and applies it to the (sub)problem of physical intrusion in an infrastructure. The gap between defining a good theoretical model and practically instantiating it is considered in particular. The model description serves to illustrate what is needed to put it into practice.
April 6, 2017
Aditi Roy, Nasir Memon and Arun Ross
This paper investigates the security of partial fingerprint-based authentication systems, especially when multiple fingerprints of a user are enrolled. A number of consumer electronic devices, such as smartphones, are beginning to incorporate fingerprint sensors for user authentication. The sensors embedded in these devices are generally small and the resulting images are, therefore, limited in size. To compensate for the limited size, these devices often acquire multiple partial impressions of a single finger during enrollment to ensure that at least one of them will successfully match with the image obtained from the user during authentication.
April 6, 2017
Hossein Siadati, Toan Nguyen and Nasir D. Memon
Anti-phishing techniques intended to reduce the delivery rate of phishing emails, and anti-phishing trainings meant to decrease the phishing click-through rates. This paper presents the X-Platform Phishing Attack, a deceptive phishing attack with an alarmingly high delivery and click-through rates, and highlights a subset of the challenges that existing anti-phishing methods have fallen short to address. In this attack, an attacker embeds a malicious link within a legitimate message generated by a service provider. This attack can bypass the existing anti-phishing filters because the attacker uses the email ID of a reputable service provider to generate a seemingly legitimate email.
April 6, 2017
Sadia Afroz, Rebecca Sorla Portnoff, Greg Durrett, Jonathan Kummerfeld, Damon McCoy, Kirill Levchenko, and Vern Paxson
Underground forums are widely used by criminals to buy and sell a host of stolen items, datasets, resources, and criminal services. These forums contain important resources for understanding cybercrime. However, the number of forums, their size, and the domain expertise required to understand the markets makes manual exploration of these forums unscalable. In this work, we propose an automated, top-down approach for analyzing underground forums.
Secure 3D Printing: Reconstructing and Validating Solid Geometries using Toolpath Reverse Engineering
April 2, 2017
Nektarios Georgios Tsoutsos, Homer Gamil and Michail Maniatakos
As 3D printing becomes more ubiquitous, traditional centralized process chains are transformed to a distributed manufacturing model, where each step of the process can be outsourced to different parties. Despite the countless benefits of this revolutionary technology, outsourcing parts of the process to potentially untrusted parties raises security concerns, as malicious design modifications can impact the structural integrity of the manufactured 3D geometries. To address this problem, we introduce a novel compiler that allows reverse engineering G-code toolpaths (i.e., machine commands describing how a geometry is printed) to reconstruct a close approximation of the original 3D object.
Logic Locking for Secure Outsourced Chip Fabrication: A New Attack and Provably Secure Defense Mechanism
March 29, 2017
Mohamed El Massad, Jun Zhang, Siddharth Garg, and Mahesh V. Tripunitara
Chip designers outsource chip fabrication to external foundries, but at the risk of IP theft. Logic locking, a promising solution to mitigate this threat, adds extra logic gates (key gates) and inputs (key bits) to the chip so that it functions correctly only when the correct key, known only to the designer but not the foundry, is applied. In this paper, we identify a new vulnerability in all existing logic locking schemes.
March 23, 2017
Keliris, Anastasis and Maniatakos, Michail.
Cyberattacks are an emerging threat for Industrial Control Systems (ICS) that, given the tight coupling between the cyber and physical components, can have far-reaching implications. It is typical for contemporary ICS components to utilize Commercial-Off-The-Shelf (COTS) hardware and software, rendering them prone to vulnerabilities and exploitation techniques that afflict IT systems (Figure 1). In an effort to demonstrate the ICS cyber threat landscape, we discuss a comprehensive methodology for designing an Advanced Persistent Threat (APT), which is a stealthy and continuous type of cyberattack with a high level of sophistication suitable for the complex environment of ICS.
March 16, 2017
Imen Triki, Quanyan Zhu, Rachid Elazouzi, Majed Haddad, and Zhiheng Xu
In general, the quality of experience QoE is subjective and context-dependent, identifying and calculating the factors that affect QoE is a difficult task. Recently, a lot of effort has been devoted to estimating the users QoE in order to enhance video delivery. In the literature, most of the QoE-driven optimization schemes that realize trade-offs among different quality metrics have been addressed under the assumption of homogenous populations, nevertheless, people perceptions on a given video quality may not be the same, which makes the QoE optimization harder. This paper aims at taking a step further to address this limitation to meet all the users profiles.
March 15, 2017
Jerry Backer, David Hely and Ramesh Karri
This work tackles the conflict between enforcing security of a system-on-chip (SoC) and providing observability during trace-based debugging. On one hand, security objectives require that assets remain confidential at different stages of the SoC life cycle. On the other hand, the trace-based debug infrastructure exposes values of internal signals that can leak the assets to untrusted third parties.
Phishing for Phools in the Internet of Things: Modeling One-to-Many Deception using Poisson Signaling Games
March 15, 2017
Jeffrey Pawlick and Quanyan Zhu
Strategic interactions ranging from politics and pharmaceuticals to e-commerce and social networks support equilibria in which agents with private information manipulate others which are vulnerable to deception. Especially in cyberspace and the Internet of things, deception is difficult to detect and trust is complicated to establish. For this reason, effective policy-making, profitable entrepreneurship, and optimal technological design demand quantitative models of deception. In this paper, we use game theory to model specifically one-to-many deception.
March 6, 2017
Anastasis Keliris and Michail Maniatakos
Device fingerprinting can provide useful information for vulnerability assessment and penetration testing, and can also facilitate the reconnaissance phase of a malicious campaign. This information becomes critical when the target devices are deployed in industrial environments, given the potential impact of cyber-attacks on critical infrastructure devices. In this paper, we propose a method for fingerprinting industrial devices that utilize the Modbus protocol. Our technique is based on the observation that implementations of the Modbus protocol differ between vendors.
Secure and Reconfigurable Network Design for Critical Information Dissemination in the Internet of Battlefield Things (IoBT)
March 2, 2017
Muhammad Junaid Farooq and Quanyan Zhu
This work aims to build the theoretical foundations of designing secure and reconfigurable IoBT networks. Leveraging the theories of stochastic geometry and mathematical epidemiology, we develop an integrated framework to study the communication of mission-critical data among different types of network devices and consequently design the network in a cost effective manner.
February 20, 2017
Muhammad Yasin, Bodhisatwa Mazumdar, Ozgur Sinanoglu, and Jeyavijayan Rajendran
Logic encryption protects integrated circuits (ICs) against intellectual property (IP) piracy and overbuilding attacks by encrypting the IC with a key. A Boolean satisfiability (SAT) based attack breaks all existing logic encryption technique within few hours. Recently, a defense mechanism known as Anti-SAT was presented that protects against SAT attack, by rendering the SAT-attack effort exponential in terms of the number of key gates.
February 20, 2017
Rui Zhang, Quanyan Zhu and Yezekael Hayel
Network security becomes more challenging than ever as today’s computer networks become increasingly complex. The deployment of defense mechanisms such as firewalls , intrusion detection systems , and moving target defenses can effectively reduce the success rate of cyber attacks but cannot guarantee perfect network security as attacks are becoming more stealthy and sophisticated . Network users can still be hacked, resulting in severe data breaches, disruption of services and financial losses. Cyber insurance provides users a valuable additional layer of protection to mitigate potential vulnerabilities to unknown threats, hacking, and human errors.
February 19, 2017
Vladislav Taynitskiy, Elena Gubar, and Quanyan Zhu
Malware is a malicious software which aims to disrupt computer operations, gather sensitive information, and gain access to private computer systems. It can induce various sorts of damage, including economic costs, the leakage of private information, and instability of physical systems, etc. The distribution of antivirus patches in a network enables the control of the proliferation of malicious software and decreases possible losses. Multiple types of malware can coexist in a network. Hence it is important to protect a computer network from several heterogeneous malware, which can propagate in the network at the same time.
February 15, 2017
Prakhar Pandey, Ryan Brunt, Damon McCoy
In this case study, we use the leaked database of a DDoS for hire service, vdos-s.com (VDOS), to investigate how users responded to disruptions in their payment options. Earlier this year VDOS was hacked and authorities were able to arrest the people running the site . Using their leaked database, we analyze user data from July 2014 through July 2016. During this time, interventions were launched by other researchers and law enforcement to disrupt access to PayPal, the primary method used to subscribe to these booter services. In response, many booters, including VDOS, scrapped regulated payment processors in favor of Bitcoin. We show that users who previously used regulated payments methods were unlikely to switch to Bitcoin.